Electric heater for shoe machinery



May 15, 1923.

c. L. wHsTE ELECTRIC HEATER FORSHOE MACHINERY Filed Jan. 24 1921Patented May 15, 1923.

PATENT OFFICE.

CHARLES I1- WHITE, OF MEDINA, NEW YORK.

ELECTRIC HEATER FOR SHOE MACHINERY.

Application filed. January 24, 1921.

T 0 all whom it may concern Be it known that I, CHARLES L. l/VHITE, acitizen of the United States, and a resident of Medina, in the county ofOrleans and State of New York, have invented certain new and usefulImprovements in an Electric Heater for Shoe Machinery, of which thefollowing is a specification.

The invention relates to improvements in heating devices for use inconnection with certain of the working elements of shoe machinery, andmore particularly to an electrically heated element adapted to be associated with the edge setting element of such machinery.

In shoe machinery repair outfits and the like, it is common practice toassociate with certain of the working elements thereof, a heating meansgenerally of the gas burner type, and, in the use of which, oftenresults in serious injury to the operators thereof by their hands beingburned by reason of having to manipulate the shoe on such workingelement in the immediate proximity to the heating means.

The primary object of the invention is therefore, to provide a heatingmeans of the character mentioned, and one so associated with the workingelement of a machine as to be positioned at one side of the latterremoved from the working position of the operator, and, consequently, ata point different from that now occupied by known heating devices.

Another object of the invention is to provide for a heating means whichmay or may not be permanently associated with certain working elementsof a machine of the type mentioned, and which may, when permanentlyassociated therewith, be moved away from the working element so as tovary the degree of temperature of the latter if desired, and also may bereadily and quickly rendered active or inactive as necessary during theoperation of the particular working element with which it is associated.

,With the foregoing and other objects in view, the invention resides inthe certain new andusefularrangement and construction of parts as willbe hereinafter more fully described, set forth in the appended claims,and illustrated in the accompanying drawing, in which Figii'rel is'anendportion of a driven Serial No. 439,416.

shaft of a shoe machine showing the preferred embodiment of theinvention associated with an edge setter tool thereon.

Fig. 2 is a transverse section through the driven shaft showing one endof the heating device in elevation, and,

Fig. 3 is a view similar to Fig. 2 wherein is shown the opposite end ofthe device in elevation.

Referring to the drawing, in Fig. 1 thereof is shown the outer endportion of a driven shaft 10 which projects outwardly of a bearing 11and carries at its free end an edge setting tool 12, all of conventionalform and arrangement.

Slidably mounted ,on the shaft 10 and free from rotation therewith is aheating collar 13, which is circular throughout a greater portion of itsfacial edge and formed to provide a squared end portion 14 at one sideof the circular edge, which portion 14 has a longitudinally extendingbore into which is fitted an electrical heating coil 15, the latterbeing preferably reinovably held in the bore so as to be readilywithdrawn for repair or replacement as desired or necessary, and thesame is connected to a suitable source of current supply (not shown) bythe compound lead 16, extending rearwardly therefrom.

The heating collar 13 is connected by means of oppositely, disposedmetal strips or bars 17 to a slidable bearing 18, the strips or bars 17being suitably soldered or welded at or cast with the opposite sides ofthe collars 13 and 18 in a plane parallel to each other and to the shaft10, and are of a length to hold the collars spaced apart one from theother, whereby the collar 18 is not subjected to any appreciable heatingeffect from the collar 13. The collar 18 is provided with a radiallyextending interiorly threaded nipple 19 in which is threaded anactuating handle 20.

The total length of the device is substantially less than the distancebetween the opposed faces of the bearing 11 and the tool 12, so that theheating collar 13 may be moved away from the tool a sufficient distanceto allow sufficient room for the operator to take the latter off of theend of the shaft for the substitution thereon of another, or similartool of the same size. or of a difi'erent size, without burning his handin the operation. w

For holding the device in its normal position, as shown in Fig. 1, toprevent the re tation of the same with the shaft 10, the outer face ofthe bearing collar 18 is formed with an angular recess 21, one wall ofwhich, as at 22, is disposed in the plane of the horizontal axis of thesame, while the wall 23 is disposed at an angle thereto and is adaptedto function as a cam surface. if desired, and into this recess isprojected, a pin 2-1, which is carried in the adjacent face of thebearing 11.and lies in a plane parallel to the shaft. This pin 2-4-1: ofa length to remain engaged in the recess 2i at all. times, and if thecollar 18 is given a quarter turn in its movement to bring the heatingcollar 13 in abutting relation with the opposite face of the tool 12,the wall 23 of the recess 21 is engaged by the head of the pin and thedevice is forced outward from the bearing 11 and the heating collar 13held as firmly desired against the tool 12. However, the device may heslid away from the bearing 11 without the quarter turn movementaforesaid. but in any case the same will be permanently held againstcomplete rotation with the shaft.

It is to be understood that various changes in the detail constructionand arrangement of the parts of the device may be resorted to withoutdeparting from the spirit and scope of the invention.

Having thus fully described the invention. what is claimed, i

1. In a machine of the class described, a driven shaft, a tool carriedon said shaft. and a heating means mounted for m0vc ment to and fromeffective heating preyimity to said tool.

2. In a machine of the class described, a drivenshaft. a tool carried atthe free end of said shaft, a heating means carried on said shaft forheating said tool, and means for moving said heating means to and fromeffective heating proximity to said tool.

In a machine of the class described. a driven shaft. a tool carried atthe free end of said shaft. and a heating means movable on said shaft toand from effective heating proximity to said tool.

41-. In a machine of the class described, a driven shaft, a tool carriedat the free end of said shaft. and a non-rotatable electrically heatedmeans movable on said shaft to and froi n effective heating proximitywith respect to said tool.

5. In a, machine of the class described, a driven shaft. a tool carriedon said shaft. a non-rotatahle electrically heated means carried on saidshaft, and means for moving said heated means to and from effeo ti-veheating proximity to said tool..

6. In a. machine of the class described, a driven shaft, a tool carriedat the free end of said shaft, and an electrically heated means movableon said shaft and associated with said tool.

7. In a machine of the class described, a driven shaft, a tool carriedat the free end of said. shaft, an electriailly heated means movable onsaid shaft for heating said tool, and means for moving said heat ingmeans into and out of the contact with said tool.

8. In a machine of the class described, a driven shaft, a tool carriedat the free end of said shaft, an electrically heated means movable onsaid shaft, and manually operated means for moving said heating, meansinto and out of contact with said tool.

9. In a machine of the class described. a driven shaft, a tool carriedat the free end of said shaft, a member movable on said shaft. anelectrically heated means carried by said member, and means for moving"said member into and out of contact with said tool.

10. In a machine of the class described, a driven shaft, a tool carriedat the free end of said shaft, a collar encircling said shaft. anelectrically heated coil carried by said collar, and means for movingsaid collar into and out of contact with said tool.

11. In a machine of the class described, a driven shaft, a tool carriedat the free end of said shaft, a collar encircling said shaft, anelectrically heated coil carried by said collar, a bearing collar spacedfrom and connecting the first named collar. and an operating handlecarried by said hearing collar for moving the first named collar intoand out of contact with said tool.

12. In a machine of the class described, a main bearing, a driven shaftjournalled in said main bearing and having a free end projectingtherefrom. a tool carried at the free end of said shaft, a heatingcollar. an electrically heated coil carried by said heating collar, abearing collar slidably mounted on said shaft with said heating collarand connecting the latter in spaced relation bctween the opposed facesof said main hearing and said tool, and means for moving said collarsalong said shaft whereby to adjust the heating collar with respect tosaid tool.

13. In a machine of the class described. a main bearing. a driven shaftjournalled in said main bearing and having a free end projectingtherefrom. a tool carried at the free end of said shaft, a heatingcollar, an electrically heated coil carried by said heating collar. a.bearing collar slidably mounted on said shaft with said heating collarand connecting the latter in spaced relation between the opposed facesof said main bear ing and said tool, means for moving said collars alongsaid shaft whereby to adjust the heating collar with respect to thetool, and means carried by said main bearing and associated with saidbearing sleeve whereby to prevent the rotation of both of said collarswith said shaft.

14. In a machine of the class described, a driven shaft, a tool carriedon said shaft, a heating means carried on said shaft for heating saidtool, and means for moving said heating means into and out of contactwith said tool.

15. In a machine of the class described, a driven shaft, a tool carriedon said shaft, an electrically heated means carried on said shaft forheating said tool, and means for moving said heating means to and fromeffective heating proximity to said tool.

16. In a machine of the class described, a driven shaft, a tool carriedon said shaft, non-rotatable electrically heated means movably mountedon said shaft, and manually operated means for moving said heated meansto and from heating proximity to said tool.

17. In a machine of the class described, a driven shaft, a tool carriedon said shaft, a member movable with respect to said tool, a heatingmeans carried by said member, and means for moving said member to andfrom effective heating proximity to said tool.

18. In a machine of the class described, a driven shaft, a tool carriedon said shaft, a member movable with respect to said tool, anelectrically heated means carried by said member, and means for movingsaid member to and from effective heating proximity to said tool.

19. In a machine of the class described, a driven shaft, a tool carriedon said shaft, a heating means for said tool, and a manually operatedcam means for moving said heating means to and from effective heatingproximity to said tool.

20. In a machine of the class described, a driven shaft, a tool carriedon said shaft,

an electrically heated means for said tool,

and a manually operated cam means for moving said heating means to andfrom effective heating proximity to said tool.

21. In. a machine of the class described, a driven shaft, a tool carriedon said shaft, a member movable on said shaft. a heating means carriedby said member, and a cam. means for moving said member to and fromeffective heating proximity to said tool.

22. In a machine of the class described, a driven shaft, a tool carriedon said shaft, a member movable on said shaft, and electrically heatedmeans carried by said 1nember, and a cam means for moving said memher toand from effective heating proximity to said tool.

23. In a machine of the class described, a driven shaft, a tool carriedon said shaft, a member movable on said shaft, a removable heating meanscarried by said member, and a cam means for moving said member to andfrom effective heating proximity to said tool.

24:. In a machine of the class described, a driven shaft, a tool carriedon said shaft, a member movable on said shaft, a removable electricallyheated means carried by said member, and a cam means for moving saidmember to and from effective heating proximity to said tool.

25. In a machine of the class described, a driven shaft, a tool carriedon said shaft, a member movable on said shaft, a heating means carriedby said member, means for preventing the rotation of said member withsaid shaft, and means for moving said member into and out of contactwith said tool.

26. In a machine of the class described, a driven shaft, a tool carriedon said shaft, a member movable on said shaft, an electrically heatedmeans carried by said member, and means for moving said member into andout of contact with said tool, said means also acting to prevent therotation of said member with said shaft at all times.

27. In a machine of the class described, a driven shaft. a tool carriedon said shaft, a collar movable on said shaft, a heating means carriedby said collar, a cam recess formed at one end of said collar, astationary pin engaged in said recess, and means for effecting a turningmovement to said collar, whereby said pin acts on the cam wall of saidrecess to move said collar into contact with said tool.

28. In a machine of the class described, a driven shaft, a tool carriedon said shaft, a collar movable on said shaft, an electrically heatedmeans carried by said collar, a cam recess formed at one end of saidcollar, a stationary pin engaged in said recess, and means for effectingthe turning movement to said collar whereby said pin acts on the camwall of said recess to move said collar into contact with said tool.said pin remaining in engagement with said recess at all times wherebyto prevent the rotation of said collar with said shaft.

In testimony whereof, I affix my signature hereto.

CHARLES L. WHITE.

